Prehistoric Stone Ornaments from Phromtin Tai, Central Thailand

The multi-component site of Phromtin Tai, Thailand is notable for its long occupation from the Late Bronze Age (ca. 700-500 b.c.e.) through early historic periods (ca. c.e. 500-900). Multiple field seasons of excavation in burial and habitation areas at the site have recovered a large number of glass and stone beads. Here we present the study of 57 stone beads from the site using qualitative and quantitative methods that demonstrate the presence of multiple stone ornament workshop traditions. Examination of perforations from beads and pendants made from regionally available raw materials of marble, nephrite, serpentine, and other undetermined stone have identified the use of metal drills with abrasives and diamond drills. These drilling techniques along with the distinctive shapes of some finely made beads, as well as the reworking of older broken beads suggests the presence of different scales and organization of local production in Southeast Asia. The different shapes and production processes of carnelian and banded agate beads also may represent various workshop traditions. Some of these latter beads may have originated in South Asia, while others may have been made in different regions of Southeast Asia. This study demonstrates that careful examination of ornament production techniques, and especially bead perforation technology, can be used to identify the presence of different workshop traditions allowing for more fine-grained consideration of inter- and intra-regional bead exchange networks in Southeast Asia. The presence of many semi-precious stone beads of different materials and having morphologically and technologically distinct features at Phromtin Tai demonstrate the active consumption of the beads by social elites at the site. These diversified and exotic status markers represent an intensification and acceleration of the economy and social complexity at Phromtin Tai

Ancient history · Archaeology · Art · Bead · Drilling · Excavation · Geography · Metallurgy · Ornaments · Perforation · Prehistory · Southeast asia · Stone tool · Style (visual arts · Archaeology and ancient environmental studies · Archaeology and Rock Art Studies · History · Image Processing and 3D Reconstruction · Maritime and Coastal Archaeology · Materials Science · Pleistocene-Era Hominins and Archaeology · Geology

• Investigating the origins of carnelian beads from Tha Kae and Noen Din, Central Thailand

  Open Access•Wannaporn Rienjang, F Rispoli et al.•Archaeological and Anthropological…•2026

  Incluir item

• Production techniques of glass beads imitating banded agate during the Iron Age in Thailand

  Open Access•Yemao Hou•Archaeological and Anthropological…•2025

  Incluir item

• Carnelian beads from Noen Din, Central Thailand

  Open Access•Wannaporn Rienjang, J M Kenoyer et al.•Archaeological and Anthropological…•2025

  Incluir item